Apparatus for the wet-treatment of textile goods



March 17, 1936. o, E 2,034,687

APPARATUS FOR THE WET TREATMENT OF TEXTILE GOODS- Filed June 21, 1955 T v QMMZ QM M ATTORNEY Patented Mar. 17, 1936 UNITED STATES APPARATUS FOR THE WET-TREATMENT F TEXTILE GOODS Otto Gretler, Zurich, Switzerland Application June 21, 1935, Serial No. 27,663 In Germany May 4, 1934 (llairns The present invention relates to improvements in the wet-treatment of textile goods.

The invention comprehends inter alia an apparatus for the wet-treatment of textile-goods with conveyers lowering and lifting the textile-goods in a treating liquid in such a manner, as to obtain a speed of the downward motion of the con veyers greater than the speed of the downward motion of the textile-goods in the liquid.

A further object of my invention is to couple the vertical descent of the conveyers with a lateral motion.

The apparatus comprises conveyers pivoted to endless chains by means of arms, and resting upon guide-plates having the form of a sawblade, so that the operation of the conveyers is determined by the form of the guide-plates.

The invention will be fully understood from the following description read in connection with the accompanying drawing in which:

Figs. 1-3 show the apparatus diagrammatically, Fig. 4 shows a diagram of the position of the textilegoods before and after the descent and lateral motion of a conveyor Fig. 5 shows an alternative form of a conveyor.

Referring to the drawing, the invention includes tank I in which conveyors I, I, carrying the textile-goods 5, are pivoted by means of arms 3, 3' to endless chains 2, 2' (2' not shown). The conveyors 4, 4' rest upon guide-plates 6, 6' (6' not shown) situated parallel the walls of tank I.

The upper edges of the said guide plates are provided with teeth in saw-blade fashion. Each tooth is designed in such a manner that the side facing the direction of movement is set at a bevel angle to the horizontally disposed base line extending between any two adjacent teeth while the other side of said tooth, facing in the opposite direction is set at a right angle to the said base line. When the chains are set in motion, the conveyors 4, 4' arriving at the highest points of the teeth drop down to the base line, the descent being so rapid that the more slowly descending textile-goods will, for some time, remain suspended in the liquid without being supported by the conveyors. Due to the progressing motion of I the chain, the descending conveyor will he su ject not only to the rapid downward motion along the rectangular side of the tooth but, at the same time, to the lateral motion parallel to the horizontal base line. The resultant of both these motions will bring the conveyor in contact with the base line at a point removed from the vertex of the right angle formed by the base line and the vertical side of the last tooth in a direction opposite the direction of movement. The continued motion of the chain will then cause the conveyor, after having hit the base line, to perfo :m a purely lateral motion along the edge of the same until the beveled side of the next tooth is reached. 5 The conveyor will thereupon ascend the beveled side of the next tooth picking up on its way the slowly descending textile-goods, supporting the same, however, now at a different point than before, and upon reaching the top of the tooth 10 the cycle is repeated.

By this arrangement the places of support of the textile-goods by the conveyors (Fig. 4) while being immersed are constantly changed.

The dotted line (Fig. 4) indicates the approximate position of the textile-goods after the conveyers have reached their end position viz. the

v point at which they again commence to ascend.

In most cases conveyers of circular cross-section, as shown in Figs. 1-4 are sufilcient conveyors of different shape or form su "h as, for instance, the one shown in Fig. 5, may be used with advantage, particularly for finer materials.

' The speed of operation of the conveyers may be changed to suit prevailing conditions and requirements.

What I claim is:- l. Apparatus for the wet treatment of textilegoods comprising a tank, a plurality of bars adapted to ascend and descend in said tank, each of said bars being adapted 'while ascending to lift textile-goods in said tank, and while descending to release textile-goods, the speed of descension of each of said bars being greater than the speed of descension of, textile goods in liquid, each of said bars being adapted to contact and lift textile-goods upon each successive ascension at a point in advance of the previous point of contact, a guide-plate provided with teeth in saw-blade fashion, each of said teeth being set 40 at a bevel angle on one side, and at a right angle on the other, any two adjacent teeth being spaced apart on a horizontal base line so as to impart to each of said bars a downward motion more rapid than the upward motion, and a forward motion immediately following the said downward motion and immediately preceding the said upward motion, an endless chain adapted to move said plurality of bars progressively forward in said tank," and adapted to impart to each of said bars, while descending, a simultaneous forward motion.

2. Apparatus for the Wet treatment of textile goods, comprising a tank, a plurality of means in said tank adapted to carry textile goods, and

correction,- therein that the same in the .Patent Office. Signed iafnd sealed .this- 26th day ascend and, descend in said tank, the. speed of ascension being slower than the speed of descension, and the speed of descension being greater than the rate of fall of textile goods in liquid, and driving means adapted to move said plurallty of means progressively forward in said tank, each of said plurality of means being adapted to contact and lift textile goods upon each successive ascension at a point in advance of the previous point of contact.

4. Apparatus for the wet treatment of textile goods comprising a tank, a plurality of bars arranged in parallel and spaced apart from one another, driving means adapted to move said bars progressively forward in said tank, and guide plates coacting with said bars adapted to cause said bars to ascend and descend in said tank, the speed of descension being greater than the rate of fall of textile goods in liquid, each of said bars being adapted to contact and lift textile goods upon each successive ascension at a point in advance of the previous point of contact.

5. Apparatus for the wet treatment of textile goods comprising a tank, a plurality of bars arranged in parallel and spaced apart from one another, driving means adapted to move said bars progressively forward in said tank, said bars being movably connected to said driving means, and a serrated guide plate coacting with said bars and adapted to cause said bars to ascend and descend in said tank as they are moved progressively forward bysaid driving means.

OTTO GRETLER.

CERTIFICATE OF CORRECTION.

Patent No. 2,034,687.

March 17,. 1956.

OTTO GBETLER.

It is hereby certified that error appears in the printed the above' 'numbered patent requiring correction follows: column, line 20, for the words "sufficient conveyors" read Conveyors';-=- and that the said Letters Patent should be read. with this may conform to the record oi the case specification of- Page 1, second sufficient.

of May, A; ID. 195

Leslie Frazer Acting Commissioner of Patents.

to ascend and descend in said tank, the speed of descension being greater than the rate of fall of textile goods in liquid, and driving means adapted to move said plurality of means progresgoods comprising a tank, a plurality of bars arranged in parallel and spaced apart from one another, driving means adapted to move said bars progressively forward in said tank, and guide sively forward in said tank, each of said plurality plates coacting with said bars adapted to cause 5 of means being adapted to contact and lift textile said bars to ascend and descend in said tank, goods upon each successive ascension at a point the speed of descension being greater than the in advance of the previous pointof contact. rate of fall of textile goods in liquid, each of said 3. Apparatus for the wet treatment oftextile bars being adapted to contact and lift textile i m goods comprising a tank, a plurality of means in goods upon each successive ascension at a point 10 said tank adapted to carry textile goods, and to in advance of the previous point of contact. ascend and, descend in said tank, the. speed of 5. Apparatus for the wet treatment of textile ascension being slower than the speed of descengoods comprising a tank, a plurality of bars arsion, and the speed of descension being greater ranged in parallel and spaced apart from one 15 than the rate of fall of textile goods in liquid, another, driving means adapted to move said 15 and driving means adapted to move said plubars progressively forward in said tank, said bars rality of means progressively forward in said being movably connected to said driving means, tank, each of said plurality of means being adaptand a serrated guide plate coacting with said ed to contact and lift textile goods upon each bars and adapted to cause said bars to ascend m successive ascension at a point in advance of the and descend in said tank as they are moved 30 previous point of contact.

4. Apparatus for the wet treatment of textile progressively forward bysaid driving means.

OTTO GRETLER.

CERTIFICATE OF CORRECTION.

Patent No. 2,034,687. March 17,. 1956.

OTTO GBETLER.

It is hereby certified that error appears in the printed specification ofthe above 'numbered patent requiring correction follows: Page 1, second column, line 20, for the words "sufficient conveyors" read sufficient.

Conveyors';-=- and that the said Letters Patent should be read, with this correction,- therein that the same may conform to the record of the case in the .Patent Office.

Signed af nd sealed .this- 26th day of May, A; D. bless.

Leslie Frazer Acting Commissioner of Patents. 

